Clutch and brake pedal mechanism



Dec. 25 E923. AYSA? A. T. sTURT CLUTCH AND BRAKE PEDAL MECHANISM Dec. 25 1923. A'SA? A. T. STURT CLUTCH AND BRAKE PEDAL MECHANISM Filed June, 1922 2 Sheets-Sheet 2 Patented Dec. 25, 1923.

unirse srnras ALFRED sTUR'r, 0E Erima?, Miei-ricain, AssieNoE rro -DURANT raoroas Incom,

POEATED, A coEPoEATi-.on or DELAWARE. 'g Y CLUTCH AND BRAKE PEDAL MECHANISM.

Application medium' s. 1922.. senai No. 565.755.

To all 'whom tf/may concern/f Be it known that I, ALFRED T. S'rnnr, a citizen ofthe United States, andl al resident of Flint, county of Genesee, State of Michigan, have invented certain new and useful Improvements in Clutch and. Brake Pedal Mechanism, of which the following is a specification.

This invention relates to motor vehicles andv particularly to improved means for* mounting the clutch and brakey pedalsthereof and to the means for operating the clutches of said vehicles.

One object of the invention is to providev a mounting for the clutch and brake pedals which can be assembled as a single unit.

Another object is to simplify the construction of the brake and clutch mechanism.

Another object is to provide mechanism for operating` the clutch and brake of a motor vehicle which is lighter in weight than devices heretofore used yet amply as strong.

A further object is. to reduce the number g5 of parts' necessary to operate the clutch and fio brake of such vehicles.

Another object is to provide a single cross member to support the clutch and brake pedals.

A further object is to form said cross member of hollow, pressed metal of generous diameter yet of light weight.

Another object is to provide a swivel.

clutch operating yoke to equalize the pres'- sure on both sides of the clutch. collar.

A further object is to combine and organize the various elements herein described so that they singly and jointly perform the functions set forth.

The invention will be understood from the following description when read in connection with the accompanying drawings illustrating one embodiment thereof and in which:

Fig. 1 is a transverse section'of a motor vehicle showing the clutch and service brake pedals', the mounting therefor and the clutch.

Fig. 2 is a side elevation of the clutch and brake pedal assembly and the mounting thereforl detached from the chassis.

Fig. 3 is a section on line 3-3 of Fig. 1, the clutch being shownin elevation.

Fig. 4 is a detail" section on line 4;-4 of F ig. 1 showing the constructionof the/hollow supporting andoperating'member.

Fig. 5 'is a detail shown in Fig. 1.

of bearing member Referring in detail-'to the `drawings l0 I and=12 represent the longitudinal side members ofthe chassis or frame which maybe of any suitable or usual construction, and f 14 represents a suitable clutch carryingdogs 16 pivotedfat 18Y and adapted-to be rocked by a clutch collar 18 slidable on a drive shaft 19. rIlhe clutch and clutch collar are not,

shown in detail nor specifically described as they forml no partV of the present invention, it onlyk being necessary to here state ythat movement to the left-of thel clutch colthe ends `of the tube to close the ends therei of and flanges are struck up from vthe sections to form opposite bosses 34435, 36-37,

38-39, 40-41, as shown in Fig. 1.

Fittings 42 and 44, a yoke 46, anda litting 48 are seated'infsaid bosses. The yoke 46 is provided withv a shank 50' which is adapted to swivel within-the hubs 38A and 89 and a Cotter pin 52 is provided to prevent upward movement of said yoke. fingers 54 andv 56 ofthe yoke engage the The rear face 58 of the olutchcollar' 18 and are adapted to shift said collar when the meinber 2O is moved, as hereinafter described.

The fittings'- 44 and 48V are identical inr sizev and shape and each comprises a shank 60 and bifurcated ears 62. T-heshank of the'tting 44 is riveted or otherwise secured to the bosses 86 and 37 and the fitting 48 vis likewise secured to the bosses 40 and 41. The fitting 42 is slightly different from the others being provided with an extended arm 64 and a short ear 6.6.

The clutch pedal 68 is provided with an integral ear 67 to which is secured a footi pad 69 and said pedal is secured to the extended arm 64 by abolt 72v and a pin 70 which also projects through a hanger or bracket 74 and the short ear 66 of the fitting. The .bracket 74 is offset as shown in Fig. l and'is secured to the web of the side member 10 by rivets 76 which pass through suitable holes -7 8 in said bracket.

A similar Ybracket 80 is vsecured to the opposite frame member `12 by rivets 82 andV a pin 84 passes through the same and' through the ears of the fitting 48., The pins 70 and 84 are provided with enlarged heads and `are held against longitudinal displace` ment by suitable. cotter pins, as shown.

From the above itwill be readily seen that Vthe member 20 lis pivotallyihung on the pins 70,. and 84 which pass through the brackets 74 and 80. These pins are in axial alinementand form a fulcrum about whichy the clutch' vyoke 46 is rocked. When the foot pad 69L of the clutchpedalis pushed forward the member 2O will be swung rearward as shown in dotted lines in Fig, 2. The fingers 54 and 56 of the clutch` yoke being above the axis of the pins 7 0 and 84, willbe swung-forward at this time and thus move. the collar 1,8 to disengage the clutch,

A brakeoperating pedal86 is pivoted on a pin88 which passes through the end there of and through the ears 62 of the fitting 44. This in is also in axialalinement with the pins O and 84 as indicated by the broken center line c. Y Y l Y A connecting link or rod 90 is pivotally connected to the brake pedal and may` be provided with a turnbuckle 92 which is also securedV to a'rod 94 leading to Vthe brake,

mechanism, notV shown. Y Y

It will be .appreciated thateb'ecause the brake pedal is pivoted in c alinement with the axis of movement of the clutch pedal, no movement of the latter will be effected when the brake pedal is actuated, nor will thebrake pedal be moved by the actuation of theclutch pedal although they are both supported from the same cross member 20.

This arrangement is unique *and* elimi-` nates the necessity of providing separate` cross shafts for the brake vandclutch pedals or complex sleeve arrangements. To mount the mechanism in place the brackets Z 4 and are first securedto the chassis. The member 20, and the clutch' and brake pedals and yoke' 46are then all assembled in one unit. and this assembly is .readilyrandV accurately mounted on the car frame as shown The Y form, and a spacing collar'87 of the same thickness is placed adjacent the `pedal 86 to take up the play. The extra space between the bracket 80v and the ears of the fitting v48 allows a tolerance for variations in spacing and permits of rapidassembly.

The swivel mountingof the clutch yoke 46permits it to automaticallyadjust itself i so' that the fingers 54 .and56 thereof bear with equalpressure Von the clutch collar.

I-Iaving thus described my invention what I claim as new and desire to secure by Letters Patent is: s Y

l. In a motor vehicle, a swinging memberi pivotally supported on the vehicle, a clutch pedalmovable with said swinging member, a brake pedal pivotally mounted on said swinging member and a. clutch actuating member movable with said swinging member.

2. In a motor vehicle, a swinging member for supporting a clutch pedal, and a clutch actuating member and means for pivotally Y supporting said swingin'gmember and'said clutch pedal in Vaxial alinement.

3. In a motor vehicle, a pivota 4. In a motor vehicle the combination of a clutch, aclutch collar 4for actuating said clutch, a yoke for shifting said collar and lly mounted supportingmember, means for moving. said member, and a clutch actuating yokemount ed so as toswivel in saidfsupporting member.

means forV mounting vsaid yoke so thatV itV can swivel to vexert an equal pressure on bothYV 'Y sides of said collar.

5. In a motor vehicle thecombination of aa clutch, aclutch collar for 'actuatingysaid clutch,y and meansfor shiftingisaidcollarVV comprising a yoke having fingers engaging said collar on Yopposite'sides of its axis of;

movement, said yoke havinga swivelled support so that the fingers thereofA will bear with equal pressure said collar.

on the opposite side of 6. In a. motor vehicle, a hollow sheet metal ing said supporting m'ember,ja brakepedal secured to one of saidfittinvs, a-clutch pedal secured to another of lsaikd supporting member having a pluralityV of litL -tings secured thereto, means associatedwith certain of said fittings for pivotally support.

fittings and a clutch Y(')pe'rating yokepcarried by saidV sup-Yy porting member.

p 7. Y'In a motor vehicle, a hollow sheet Vmet-al supporting member formed of'twoV complementary half sectionsV joined to each other, .a plurality of fittings secured to Y said supporting member, brackets carriedY by the vehicle frame, means for pivotally securing certain 'of said fittings to said. brackets, a clutch operating yokecarried by said supporting member, and a pedal secured to one of said fittings for moving said supportingv member.

8. In afmotor vehicle, a hollowsheet metal supporting member formed of two @0ming said supporting member and a brake 10 piementary half sections joined to each pedal pivoted to one of said fittings and other, a plurality of ittings secured to adapted to be actuated Without moving said supporting member, brackets carried by Said SllpPOltIlg member.

the Vehicle frame, means for pivotally sen Witness Whereof have hereunto set my Curing certain of said ttings lto said hand at Long Island City, county of Queens, 15 brackets, a clutch operatingyoke mounted State of New York, this 3l day of May, to swivel in said supportin member, a pedal 1922.

movable With one of said ttings for swing- ALFRED T. STURT. 

